Transfer material

ABSTRACT

A TRANSFER MATERIAL COMPRISING: A BASE SHEET MEMBER; A MATTING LAYER DISPOSED UPON SAID BASE SHEET MEMBER; A STRIPPING LAYER DISPOSED UPON SAID MATTING LAYER, A DESIGN PRINT DISPOSED UPON SAID STRIPPING LAYER; AND AN ADHESIVE INK LAYER COVERING SAID DESIGN PRINT AT THE PRINTED AREA AND THE REMAINING PORTION OF SAID STRIPPING LAYER AT THE UNPRINTED AREA. THE SOLVENT INCLUDED IN SAID DESIGN PRINT OR SAID ADHESIVE INK LAYER MIGRATES TO THE BOUNDARY BETWEEN SAID MATTING LAYER AND SAID STRIPPING LAYER AND MAKES A LATENT IMAGE OF SAID DESIGN PRINT WHICH MAY BE DEVELOPED BY RELEASING SAID BASE SHEET MEMBER AND SAID MATTING LAYER OWING TO THE DIFFERENCE OF DULLNESS OF THE TRANSFERRED SURFACE BETWEEN THE PRINTED AREA AND THE UNPRINTED AREA.

l 1974 KOZQ MATsuMuRA ETAL 3,834,925

TRANSFER MATERIAL Filed Aug. 18, 1972 2 Sheets-Shea? 1 p 10, 1974 KOZO MATSUMURA ETAL 3,834,925

TRANSFER MATERIAL Filed Aug. 18, 1972 2 Sheets-Sheet 2 United States Patent 3,834,925 TRANSFER MATERIAL Kozo Matsumura and Sigeki Ito, Otokuni, Japan, assignors to Nissha Printing (10., Ltd., Kyoto Prefecture, Japan Continuation-impart of abandoned application Ser. No. 118,297, Feb. 24, 1971. This application Aug. 18, 1972, Ser. No. 281,964

Claims priority, application Japan, Mar. 20, 1970, 45/23,790, IS/27,037 Int. Cl. B41rn 3/12, 3/06 US. Cl. 117--3.4 13 Claims ABSTRACT OF THE DISCLOSURE A transfer material comprising: a base sheet member; a matting layer disposed upon said base sheet member; a stripping layer disposed upon said matting layer; a design print disposed upon said stripping layer; and an adhesive ink layer covering said design print at the printed area and the remaining portion of said stripping layer at the unprinted area. The solvent included in said design print or said adhesive ink layer migrates to the boundary between said matting layer and said stripping layer and makes a latent image of said design print which may be developed by releasing said base sheet member and said matting layer owing to the difference of dullness of the transferred surface between the printed area and the unprinted area.

RELATED APPLICATION This application is a continuation-in-part of copending application Ser. No. 118,297, filed Feb. 24, 1971, now abandoned.

The present invention relates to an improvement of a transfer material for transferring stripping layers of said material onto a receiving surface of receiving article by conventional transfer means such as heat transfer and others.

More particularly, this invention relates to the transfer material comprising a matting layer disposed upon a base sheet member, a stripping layer disposed upon said matting layer and an image-forming inked layer printed upon said stripping layer in such manner that a solvent used for said inked layer infiltrates and swells said stripping layer and erodes said matting layer, whereby when the said transfer material is transferred onto the receiving surface of receiving article and said base sheet member together with said matting layer are stripped away from said transfer material, the transferred surface, which differs in gloss at the desired portions thereof from the other portions in perfect conformity with the image-forming pattern of said inked layer, is formed on the outermost surface of said receiving article.

Further, this invention relates to a method for transferring a design print onto the receiving surface of receiving article, which comprises forming a partially matted layer on the outer surface of the receiving article, by the action of a solvent used for the image-forming inked layer which infiltrates and swells the resin film of the stripping layer and erodes the matting layer of the transfer material.

No transfer material capable of providing a transferred surface of which the desired portion differ in gloss thereof from other portions in perfect conformity with the imageforming pattern of the inked layer of the transfer material has been known. The conventional transfer materials were to provide always an even gloss or matt on a transferred surface of a receiving article after transfer of transfer layers. The transfer label disclosed in the British Patent Specification No. 1,128,455 may be exemplified as one of such conventional transfer materials.

3,834,925 Patented Sept. 10, 1974 The transferred surface according to such kind of the conventional transfer materials is poor in variation and, for example, in case of a transfer material for woodgrain pattern the reappearance of the transferred surface having visually a three dimensional effect like a natural wood board was difiicult to obtain.

The object of the present invention is to provide a transfer material capable of providing, in perfect conformity with an image-forming pattern of an inked layer thereof, a transferred surface which differs in gloss at the desired portions thereof from the other portions, to represent a visual three dimensional effect on the outermost surface of a receiving article. Thus, according to the present invention, it is possible to represent, for example, a woodgrain pattern like that of a natural wood board on an outermost surface of a plastic molding by transferring the woodgrain pattern of the inked layer of transfer material onto the receiving surface thereof.

The present invention may be better understood by referring to the accompanying drawings in which:

FIG. 1 is a cross-sectional view of an embodiment of a transfer material according to the present invention;

FIG. 2 is a cross-sectional view of the transfer material wherein stripping layers thereof are transferred onto a receiving article and a base sheet member together with a matting layer are released.

FIG. 3 is a cross-sectional view of another embodiment of a transfer material according to the present invention;

FIG. 4 is a cross-sectional view of the transfer material in FIG. 3 wherein stripping layers thereof are transferred onto a receiving article and a base sheet member together with a matting layer are released.

FIG. 5 is a sectional view of a. further embodiment of a transfer material according to the present invention; and

FIG. 6 is a sectional view of the transfer material in FIG. 5 wherein stripping layers thereof are transferred onto a receiving article and a base sheet member together with a matting layer are released.

As shown in FIG. 1, a transfer material according to the present invention is provided with a matting layer 2 which is formed on the upper surface of a thin base sheet member 1 such as paper. cellophane, polyethylene, polypropylene, polyester and the like. said matting laver being made of a resinous material which can be readily eroded by a solvent of an inked layer 4 to give a matted surface. Then, said matting layer 2 is thinly and entirely coated with a stripping layer 3 made of a transferable resinous material. For the stripping layer 3 it is necessary to select the resinous material which swells readily with the solvent of the inked layer 4. It is further necessary for the resinous material not to lose transferring and stripping functions thereof after having swollen with the solvent of the inked layer 4. Further, the resinous material must be permeable to the solvent so that it is swollen with said solvent. Then, the inked layer 4, that is to say. a suitable image-forming inked layer is printed upon said stripping layer 3. Said inked layer 4 is comprised of a printing ink possessing a desired color tone. A vehicle of the printing ink is of a specific resinous material which is soluble in a solvent of the inked layer 4. Finally, an adhesive ink 5 is coated on the upper surface of the stripping layer 3 while covering the image-forming inked layer 4 thoroughly. As for a vehicle of the adhesive ink 5, any resinous material having adhesiveness may be used, but a solvent to be used therein should be of the one which affects the matting layer 2, passing through the stripping layer 3, extremely little if not at all. The adhesive ink may be of either a heat sensitive adhesive or a pressure sensitive adhesive. Since the transfer material of the present invention is possessing the aforesaid structure, the solvent of the inked layer 4 (the suitable image-forming layer) infiltrates and swells the stripping layer 3 and then erodes the matting layer 2. Thus, the surface appearance of the transferred layers will perfectly correspond to the printing pattern of the inked layer 4 (the image-forming layer), and the boundary between the stripping layer 3 and the matting layer 2 turns to become the partially matted boundary surface 2'. This change will conform to the pattern of the inked layer 4 (the image-forming layer), whereby the partially matted boundary surface 2' conforms to the image-forming pattern. It has been experimentally confirmed that the stripping layer 3 perfectly effects its function without losing its stripping function due to infiltration of the solvent of the inked layer 4. Needless to say that at the spots where the adhesive inked layer is in direct contact with the stripping layer 3, the matting layer 2 does not receive any change or receives just a slight change by the solvent of the adhesive inked layer 5. Thus, one of the structure of the transfer material is made which provides the transferred surface having partially different gloss thereon in perfect conformity with the image-bearing pattern.

FIG. 2 shows the transfer material of FIG. 1 of which the stripping layers are transferred onto a receiving surface of receiving article 6 and the base sheet member 1 together with the matting layer 2 are released. The transfer layers of the transfer material are released between the matting layer 2 and the stripping layer 3 after transfer thereof. The matting layer 2 still remains on the base sheet member 1 while the stripping layer 3 remains on the receiving article 6 together with the inked layer 4 having a desired pattern and the adhesive inked layer 5. Thus, in the transfer material as shown in FIG. 1 the solvent of the inked layer 4 erodes the matting layer 2 by the function thereof and as a result, the partially matted boundary surface 2 is formed at the boundary between the matting layer 2 and the stripping layer 3. When transferred, this portion 2 is developed into an image of the printed pattern by the difference of dullness from the portions where the adhesive inked layer 5 is in direct contact with the stripping layer 3.

FIG. 3 shows another embodiment of the transfer material according to the present invention. In this case, a cross-sectional view of the transfer material is shown wherein the solvent of the inked layer 4 (the image-forming layer) is the one which, passing through the stripping layer 3, does not affect at all the matting layer 2, while the solvent included in the adhesive inked layer 5- is the one which swells the stripping layer 3 and erodes the matting layer 2.

FIG. 4 shows a cross-sectional view of the transfer material as shown in FIG. 3 of which transfer layers are transferred onto the receiving surface of receiving article 6. In this case, the solvent of the adhesive ink 5 also infiltrates and swells the stripping layer 3, reaches the matting layer 2, and erodes said layer 2 to produce a more matted condition at the boundary between the stripping layer 3 and the matting layer 2, thereby forming the partially matted boundary surface 2 at the boundary where the stripping layer 3 is in direct contact with the adhesive inked layer 5. However, the transfer material as shown in FIG. 3 is possessing the image-forming inked layer 4 of which the solvent does not affect at all the matting layer 2, passing through the stripping layer 3, between the adhesive inked layer 5 and the stripping layer 3. The said transfer material obviously differs in the inked layer 4 from the transfer material as shown in FIG. 1. This imageforming inked layer 4 functionates as a protective layer against the solvent included in the adhesive ink layer 5. The solvent in this layer 4 does not attack the matting layer 2 passing through the stripping layer 3. Accordingly, the matting layer 2 will not be changed as said layer is not affected at all.

The unique advantages according to the present invention will be much better understood by referring to the embodiment as shown in FIGS. 5 and 6.

When a surface of natural wood board is carefully examined, there will be found the most extremely complicated structure rich in color, so that it is quite difficult to represent artificially such kind of complicated design, while at least with regard to the colors thereof some artificial reappearances having been somewhat well performed by excellent printings.

However, in fact, it has been quite impossible to represent artificially the partial changes in gloss of patterns and visual three dimensional appearance of the outermost surface of the natural wood board.

As for the transfer material, the conventionally used woodgrain pattern forming transfer materials were capable of providing on the transferred surface after transfer either an allover glossy condition or an allover matted condition. However, there was no such transfer material which could provide partially different gloss on the outermost surface of the receiving article, thereby providing the surface effect identical to the surface of natural wood board. For this reason, it was absolutely impossible to obtain on the outermost surface of the receiving article a surface condition like that of the natural wood board by transferring the woodgrain pattern forming transfer material onto said receiving article. However, it has now become possible to obtain the transferred surface partially possessing the different surface gloss on said outermost surface, which is perfectly identical to that of the natural wood board by using the woodgrain pattern forming transfer material according to the present invention. By using the said transfer material it becomes possible to provide the transferred surface almost the same as that of the natural wood board by representing delicate variations of color, pattern and gloss thereon.

Numeral 1 in FIG. 5 represents a thin base sheet member such as paper, cellophane, polyethylene, polypropylene and polyester and the like. A mat-ting layer 2 is formed upon the said base sheet member 1. Then, a stripping layer 3 is formed upon the base sheet member 1 by thinly and thoroughly coating thereover a resinous material which is capable of stripping away. The stripping function at the time of transfer is to occur at the boundary between the stripping layer 3 and the matting layer 2, so that the outermost surface of the stripping layer 3 will become the outermost transferred surface after stripping way. Further, upon the stripping layer 3 with a suitable color tone an inked layer 4 is formed, said layer 4 being the one to form the vascular portion of the woodgrain pattern, while an inked layer 4' which is to form the semi-vascular portion by using a printing ink of preferred printability is also formed thereon. Finally, the structure of the transfer material according to the present invention is completed by coating entirely or partially an adhesive inked layer 5 which is to serve as the background color of the woodgrain pattern over the inked layers 4 and 4' which are to form the vascular portion consisting of the vessel and the tracheid of the woodgrain pattern and the semi-vascular portion possessing a relatively darker color, respectively. As to the vehicle for forming the adhesive inked layer 5, resinous materials possessing adhesiveness whether of pressure sensitive adhesion or heat sensitive adhesion may be used. The solvent included in the inked layer 4 and/ or 4' swells the stripping layer 3 and erodes the matting layer 2 in conformity with the printed area.

As shown in FIG. 6, the transfer material is stripped away at the boundary between the matting layer 2 and the stripping layer 3, said matting layer 2 still remaining on the base sheet member 1, and the stripping layer 3, the inked layer 4 of the vascular portion of the woodgrain pattern, the inked layer 4' of the semi-vascular portion and the adhesive inked layer 5 transfer upon the receiving surface of .the receiving article 6. Then the matted pattern will be exactly represented on the surface of the stripping layer 3 which is to become the outermost surface of the receiving article after stripping away of the matting layer 2 and the base sheet member 1.

In order to obtain such transfer material, the base sheet member 1 is coated thoroughly with the matting layer 2 composed of the vehicle of resinous material, for example, of a cellulose resin which readily erodes by the solvent such as ketones, esters or the like. Such vehicle will not be attacked with other solvents than those shown above. The outer surface of the said matting layer 2 shows the matted condition when the same is eroded by the solvent such as ketones, esters or the like. Then, upon the matting layer 2 the stripping layer 3 is thinly coated, said layer 3 being capable of stripping away and readily swollen with the solvent such as ketones, esters or the like. As a result of an experimentation, it is preferable to use for the said stripping layer 3 a resinous material such as gum derivatives of natural rubber, polyolefin derivatives or the like, through which the solvent such as ketones, esters or the like infiltrates rapidly down to the matting layer 2 when said stripping layer is swollen by the solvent. Further, upon said stripping layer 3 either one or both of the inked layers 4 and 4 are formed, said layers being to form the vascular portion of the woodgrain pattern and the semi-vascular portion, respectively, by using the printing ink including the solvent such as ketones, esters or the like. Furthermore, the adhesive inked layer 5 is formed entirely thereupon which includes the solvent other than the solvent such as ketones, esters or the like. With the formation of the above mentioned structure, the solvent such as ketones, esters or the like included in either one or both of the inked layers 4 and 4 swells and infiltrates the stripping layer 3, reaches the layer 2 and partially erodes the layer 2. As a result, the boundary surface 2' between the stripping layer 3 and the matting layer 2 become rough and more matted.

This change occurs only at the portion where the ink including the solvent such as ketones, esters or the like is printed. Certainly, it has been experimentally confirmed that the stripping layer 3 fully functionates without losing the stripping function thereof. It has also been experimentally confirmed that the transferred surface, after transfer, becomes more matted at the portion where the ink including the solvent such as ketones, esters or the like is printed than the other portion. And, since the matting layer 2 receives change only at the portion where the ink including the said solvent is printed, the boundary surface 2 between the matting layer 2 and the stripping layer 3 becomes more matted in conformity with the woodgrain printing pattern. This is one of advantages of the said method. It is freely possible to control the matted degree of each portion by varying the thickness and surface condition of the matting layer 2, the kind and quantity of the solvent included in the printing ink, and the thickness of the inked layer 4 which is to form the vascular portion of the woodgrain pattern and the inked layer 4 which is to form the semi-vascular portion.

As described above, the transfer material according to the present invention is capable of providing the color, pattern, gloss condition on any surace and the visual three dimensional effect identical to those of the natural wood board by selecting the glossy condition at the desired portion of the transferred surface. Thus, it has become possible to provide an article having the appearance completely identical to the natural wood by transferring and releasing the stripping layers of the transfer material upon the receiving surface of any article such as metal, plastic, glass, paper, cloth and others. The transfer material provided with the said structure is mostly effective when applied to the transfer of woodgrain pattern, however, needless to say, it is also suitable for the transfer of leather pattern, textile pattern, marble pattern and others to give the three dimensional appearance.

For carrying out the present invention, the following conditions are especially necessary:

(a) selecting the solvent which infiltrates and swells the stripping layer 3, reaches the layer 2, erodes the matting laver 2 and froms the matted boundary surface,

(b) selecting the solvent which, passing through the stripping layer 3, hardly affects the layer 2,

(c) selecting the solvent of the adhesive ink or the image-forming ink which is to form the printing pattern, and

(d) selecting the resinous materials suitable for the matting layer 2 and stripping layer 3 which are susceptible to the action of the solvent set forth in (b) or (c).

The following are examples of the resinous materials suitable for accomplishing the present invention, and the Table shows the affecting degrees thereof against various kinds of solvents.

I. Resinous materials suitable for the matting layer 2 Nitrocellulose Acetylcellulose Cellulose acetate butyrate Cellulose propionate Ethylcellulose II. Resinous materials suitable for the stripping layer 3 Chlorinated rubber Cyclized rubber Chlorinated polypropylene III. Resinous materials suitable for the image-forming inked layer 4 1. materials which are readily atfectible by the above mentioned solvents Chlorinated rubber Cyclized rubber Chlorinated polypropylene 2. materials which are hardly alfe'ctible by the abovementioned solvents Acrylic polymers Polyamide Chlorinated polyethylene IV. Resinous materials suitable for the adhesive inked layer 5 Chlorinated rubber Cyclized rubber Chlorinated polypropylene Acrylic polymers Polyvinyl chloride acetate copolymer Polyvinylidene chloride Polyamide V. Effects of various kinds of solvents on the abovementioned resinous materials used as the matting layer 2 and the stripping layer 3.

TABLE Solvents havin mattin Solvents which, act-ivlt z y g passing through the The affecting degrees to the stnpplng matting layer 2 passing layer 3, hardly through the stripping affect the layer 3 matting M Solvents layer 2 Slight Medium Strong Benzene O O O O O Trichloroethylene 0 Methyl alcohol 0 Ethyl ale0h0l O Butyl alcohol 0 Methyl chloroform O Ethyl lactate Acetone But acetate Methyl iso-butyl ketone Cyclohexanoue Dioxane l. Methyl acetate. Ethyl acetate Methyl ethyl ketone Tetrahydrofuran From the Table, a suitable solvent may be selected when a specific resinous material is selected for the matting layer 2 and the stripping layer 3,. as well as the solvent which, passing through the stripping layer 3, hardly affects the layer 2. Needless to say that a mixture of these solvents is also applicable thereto.

7 The following examples illustrate the present invention wherein suitable resinous materials and solvents have been selected from those mentioned above.

Example 1 Base sheet member (1) polyethylene terephthalate film thickness A woodgrain-patterned vascular portion is printed on the stripping layer 3 to form the image-forming inked layer 4, and the adhesive inked layer is disposed to cover the printed area and the unprinted area. The finished product is transferred by heat on a thermoplastic molding used as the receiving article 6. It has been confirmed that the woodgrain-patterned vascular portion become more matted than the other portion in proportion to its thickness of the ink layer 4 on the transferred surface after said transfer has been finished.

Example 2 Base sheet member 1) cellophane micron 40 Matting layer (2):

ethylcellulose parts 30 dimethyl phthalate do 5 ethyl acetate do 45 toluene do Stripping layer (3):

chlorinated rubber do diethyl phthalate do 15 toluene do 55 Inked layer (4) which is to form the desired pattern:

chlorinated polyethylene do pigment do 25 toluene do Adhesive inked layer (5):

polyvinyl chloride acetate copolymer resin do 15 diethyl phthalate do 5 pigment do 40 methyl ethyl ketone do 35 methyl iso-butyl ketone do 10 An abstract pattern is printed on the stripping layer 3 to form the image-forming inked layer 4, and the adhesive inked layer 5 is disposed thereon to cover the printed area and the unprinted area. The finished product is transferred by heat onto a thermoplastic molding used as the receiving article. -It has been confirmed that the desired portions of the abstract pattern become much more matted.

The degree of dullness of the selected portions on the,

transferred surface are freely controllable by the thickness of the matting layer 2, the thickness of the stripping layer 3, the kinds and containing amounts of the solvent included in the image-forming inked layer 4 or the adhesive inked layer 5, and/or the thickness of these inked layers.

The transfer material possessing the construction in accordance with the present invention is able to provide a visual three dimensional effect closely resembling a delicate surface structure by changing the surface gloss of the desired portions corresponding to the image-forming inked layer 4 representing a pattern such as woodgrain pattern or abstract pattern, thus a completely new decorative effect may be obtained by the transfer material of the present invention.

What is claimed is:

1. A transfer material comprising:

a base sheet,

a cellulosic matting layer adhered to the upper surface of the base sheet, the matting layer being erodable by selected solvents but not others,

a stripping layer releasably disposed on the upper surface of the matting layer, the stripping layer including resinous material which is permeable to and swellable by said selected solvents,

an ink design imprinted on portions of the upper surface of the stripping layer, said ink including one of said selected solvents, the portions of the strip ping layer below the ink design being swollen by the solvent and the solvent permeating through the stripping layer so that the portions of the matting layer below the ink design are eroded by the solvent and are relatively rough compared to the adjacent portions of the matting layer, the swollen portions of the stripping layer below the ink design mating with the eroded portions of the matting layer being relatively rough compared to the adjacent portions, and

an adhesive ink layer covering said ink design and the portions of the stripping layer which are not imprinted with the ink design, the adhesive ink layer comprising an adhesive, ink, and a solvent which does not erode the matting layer.

2. The transfer material of claim 1 in which the base sheet comprises a member selected from the group consisting of paper, cellophane, polypropylene, and polyester.

3. The transfer material of claim 1 in which the stripping layer comprises a member selected from the group consisting of chlorinated rubber, cyclized rubber and chlorinated polypropylene dissolved in an aromatic hydrocarbon solvent.

4. The transfer material of claim 1 in which the ink of the ink design includes a vehicle selected from the group consisting of chlorinated rubber, cyclized rubber, and chlorinated polypropylene, a solvent selected from the group consisting of methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, methyl acetate, ethyl acetate, butyl acetate, dioxane, tetrahydrofuran and mixtures thereof, and pigment.

5. The transfer material of claim 1 in which the adhesive of the adhesive ink layer includes a member selected from the group consisting of chlorinated rubber, cyclized rubber, chlorinated polypropylene, acrylic polymers, polyvinyl chloride acetate copolymer, polyvinylidene chloride and polyamide.

6. The transfer material of claim 1 in which:

the base sheet comprises a member selected from the group consisting of paper, cellophane, polypropylene, and polyester;

the stripping layer comprises a member selected from the group consisting of chlorinated rubber, cyclized rubber and chlorinated polypropylene dissolved in an aromatic hydrocarbon solvent;

the ink of the ink design includes a vehicle selected from the group consisting of chlorinated rubber, cyclized rubber, and chlorinated polypropylene, a solvent selected from the group consisting of methyl ethyl ketone, methyl iso-butyl ketone, cyclohexanone, methyl acetate, ethyl acetate, butyl acetate, dioxane,

'9 tetrahydrofuran and mixtures thereof, and pigment; and

the adhesive of the adhesive ink layer includes a member selected from the group consisting of chlorinated rubber, cyclized rubber, chlorinated polypropylene, acrylic polymers, polyvinyl chloride acetate copolymer, polyvinylidene chloride and polyamide.

7. A transfer material comprising:

a base sheet,

a cellulosic matting layer adhered to the upper surface of the base sheet, the matting layer being erodable by selected solvents but not others,

a stripping layer releasably disposed on the upper surface of the matting layer, the stripping layer including resinous material which is permeable to and swellable by said selected solvents,

an ink design imprinted on portions of the stripping layer, said ink including a solvent which does not erode the matting layer, and an adhesive ink layer covering said ink design and the portions of the stripping layer which are not imprinted with the ink design, the adhesive ink layer comprising an adhesive, ink, and one of said selected solvents, the portions of the stripping layer which are not imprinted with the ink design being swollen by the solvent of the adhesive ink layer and the solvent of the adhesive ink layer permeating through the stripping layer so that the portions of the matting layer which are below the swollen portions of the stripping layer are eroded by the solvent and are relatively rough compared to the adjacent portions of the matting layer, the swollen portions of the stripping layer mating with the eroded portions of the matting layer being relatively rough compared to the adjacent portions of the stripping layer.

8. The transfer material of claim 7 in which the base sheet comprises a member selected from the group consisting of paper, cellophane, polypropylene, and polyester.

9. The transfer material of claim 7 in which the stripping layer comprises a member selected from the group consisting of chlorinated rubber, cyclized rubber and chlorinated polypropylene dissolved in an aromatic hydrocarbon solvent.

10. The transfer material of claim 7 in which the ink of the ink design includes a vehicle selected from the group consisting of acrylic polymer, polyamide and chlorinated polyethylene dissolved in an aromatic hydrocarbon solvent and pigment dispersed therein.

1 1. The transfer material of claim 7 in which:

the base sheet comprises a member selected from the group consisting of paper, cellophane, polypropylene, and polyester;

the stripping layer comprises a member selected from the group consisting of chlorinated rubber, cyclized rubber and chlorinated polypropylene dissolved in an aromatic hydrocarbon solvent; and

the ink of the ink design includes a vehicle selected from the group consisting of acrylic polymer, polyamide and chlorinated polyethylene dissolved in an aromatic hydrocarbon solvent and pigment dispersed therein.

12. The transfer material of claim 7 in which adhesive ink layer comprises a member selected from the group consisting of chlorinated rubber, cyclized rubber and chlorinated polypropylene, a solvent selected from the group consisting of methyl ethyl ketone, methyl iso-butyl ketone, cyclohexanone, methyl acetate, ethyl acetate, butyl acetate, dioxane, tetrahydrofuran and mixtures thereof, and pigment.

13. The transfer material of claim 11 in which the adhesive ink layer comprises a member selected from the group consisting of chlorinated rubber, cyclized rubber, and clorinated polypropylene, a solvent selected from the group consisting of methyl ethyl ketone, methyl iso-butyl ketone, cyclohexanone, methyl acetate, ethyl acetate, bu-

tyl acetate, dioxane, tetrahydrofuran and mixtures thereof, and pigment.

References Cited UNITED STATES PATENTS 3,459,626 8/1969 Morgan 1173.1 3,516,904 6/1970 Klinker 161- 227 2,746,877 5/1956 Matthes 1l7-3.4 2,746,893 5/1956 Matthes 161406 X FOREIGN PATENTS 1,128,455 9/1968 Great Britain 117-31 28,422 6/1968 Japan 117-3.1 816,022 6/1969 Canada 117--3.1

GEORGE F. LESMES, Primary Examiner E. P. ROBINSON, Assistant Examiner US. Cl. X.R. 

